The quicksilver resources of California . s â / Q 1 / â /⢠^^^^ / ^ / / /l ^4 / / / / ^ cs^ ^ / ^J^^^ -â â â S L Itt \^ tJ / ^ />r> 5 - 1 s 1 ^ 1 â¢> ^ 00 ct H « ^< 5 °° 0 ^ -^ / Ti^\J^^^-^^^ \ o J o / H -J<ow rt \ \ K-k ) ^ \ \ <0 ol t 1 ..ir^ ^^â¢/n/nA 1 <M \.,, § 5: \ ~ A ^ \ \ 5 \ y v-kix ^ \ « i2 \ -^ c ^ ft \ \ . t Q A ?°\1 a?^ \ 1 ° .5; \ 1 \ \v, 3 \ <J \ - r ^ \ J. ^ \ Q V^ \ « \ ^ V \ V . OCj^___^ 1, \ o£iâ^â 108 QUICKSILVER RESOURCES OF CALIFORNIA. about the extent and importance of this deposit of quicksilverore. A thin seam of cinnabar ore, thre
The quicksilver resources of California . s â / Q 1 / â /⢠^^^^ / ^ / / /l ^4 / / / / ^ cs^ ^ / ^J^^^ -â â â S L Itt \^ tJ / ^ />r> 5 - 1 s 1 ^ 1 â¢> ^ 00 ct H « ^< 5 °° 0 ^ -^ / Ti^\J^^^-^^^ \ o J o / H -J<ow rt \ \ K-k ) ^ \ \ <0 ol t 1 ..ir^ ^^â¢/n/nA 1 <M \.,, § 5: \ ~ A ^ \ \ 5 \ y v-kix ^ \ « i2 \ -^ c ^ ft \ \ . t Q A ?°\1 a?^ \ 1 ° .5; \ 1 \ \v, 3 \ <J \ - r ^ \ J. ^ \ Q V^ \ « \ ^ V \ V . OCj^___^ 1, \ o£iâ^â 108 QUICKSILVER RESOURCES OF CALIFORNIA. about the extent and importance of this deposit of quicksilverore. A thin seam of cinnabar ore, three inches wide at thesurface, has been cut by a tunnel at a depth of about 30 feet,showing a width of one foot. The mine is equipped with a20-ton Fitzgerald furnace, built in the latter part of 1902. Great Eastern and Mount Jackson Mines.âNear Great Eastern Quicksilver Mining Company, owner;A. Abbey, superintendent, Mercury, Sonoma County: or No. 44Nevada Block, San Francisco. In Sees. 16 and 17, T. 8 N.,. Fig. 41. Section over the Great Eastern Mine. R. 10 W. [See Mon. XIII, U. S. G. S., page 362; ReportState Mining Bureau of Cal., VIII, page 633; XI, page 460;XIII, page 602.] These mines are peculiar in so far that theyare at a considerable aistance from all other workable depositsand also from any known eruptives. The outcrop is prominent,but only for a relativeh short distance (about 1900 feet), andfollows prett} closely a belt of serpentine [see Fig. 40], cuttingthrough the irregularly metamorphosed rocks of the CoastRange, probably of Neocomian age. The strike is very nearheast and westâin the Great Eastern, N. 75° \V.; in the MountJackson, N. 63° W. The croppings stand almost vertical nearthe surface, but in depth dip northeasterly. The sandstone General Plan ofGREAT EASTERN MINE. c/ierf^ beets â 0 < ^, :c^,^v.ââââ.v^^^^,;^;-/^,.< -;_ <- - \}^^Or,-J-~~ - / coarse ^ c:. ^ s ^ 40O Soo FEEr I I
Size: 1650px × 1515px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectminesandmineralresou
